From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Reichel Subject: Re: [PATCH v2 1/2] power: reset: at91: add sama5d3 reset function Date: Mon, 20 Jul 2015 18:42:42 +0200 Message-ID: <20150720164241.GA5930@earth> References: <1437384726-24927-1-git-send-email-josh.wu@atmel.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="HlL+5n6rz5pIUxbD" Return-path: Content-Disposition: inline In-Reply-To: <1437384726-24927-1-git-send-email-josh.wu-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Josh Wu Cc: Nicolas Ferre , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Guenter Roeck , Kumar Gala , Ian Campbell , Rob Herring , Ben Dooks , Krzysztof Kozlowski , Alexandre Belloni , Pawel Moll , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sudeep Holla , Wei Yongjun , Fabian Frederick , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Boris Brezillon , Dmitry Eremin-Solenikov , David Woodhouse , Mark Rutland , Maxime Ripard List-Id: linux-pm@vger.kernel.org --HlL+5n6rz5pIUxbD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Mon, Jul 20, 2015 at 05:32:05PM +0800, Josh Wu wrote: > This patch introduces a new compatible string: "atmel,sama5d3-rstc" and > new reset function for sama5d3 and later chips. >=20 > As in sama5d3 or later chips, we don't have to shutdown the DDR > controller before reset. Shutdown the DDR controller before reset is a > workaround to avoid DDR signal driving the bus, but since sama5d3 and > later chips there is no such a conflict. >=20 > So in this patch: > 1. the sama5d3 reset function only need to write the rstc register > and return. > 2. we can remove the code related with sama5d3 DDR controller as > we don't use it at all. >=20 > Signed-off-by: Josh Wu > Acked-by: Nicolas Ferre queued. -- Sebastian --HlL+5n6rz5pIUxbD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJVrST+AAoJENju1/PIO/qaDNIP/jmCqEJsY/NuiFaVK/nCyIyy Wu+Dh5Ow9SnvGIyLlNMdmhdyqQYtgWuPeepTqjzbEFIFsun/yFmnBMrs8EAg9fm6 JjQy2DuzAJO0s0GmvtbrzZ4/EMcyh6DeH136EW4ZrJkBsnQRDqXS2wmbpRmJK34l yck+CMZunNjKfT+Wxn/blV0ora+Avf7Sz+ZvqXX3XM1ki/tJACme5vuxkZBhImYH mNkBRIe7QUI/+12HkwZukn0Ij38k6Vrjr5wCheaBajNxMUCu/CpfU4kwKjFUls4S 7WevKaNLzGA1taFzK8jz9Qrd02gPqMi3H9C0ELLTa9+soeQau2pvQcZAjNGEpvTG NbnoIBPa9m4bgAkxLbS2BKbqugsJqL/sRdxdOhcyzlYPZn/EsCQJD3IXaFM3hiwX Z4L9FwaCAUtMD3029BdFzk3Od9W+3BIfXrOExnw6hfddNIMW1i+kCoqpuS6XTVmb +JFGN4ITCp5YZz6Arsq0KASPbD+C8TUY7S2IPY8cjxpEdhor4fiVAB+gB3gu2k7U PRp7d1gzlDYFOMW/o56qDg0kUzf+ZHF8NrqXr+odI+JEVEHSPdNNY30HB4v7yevr gwcLHIfA6dZjUIkM1TDAsW/Y2WGwXeBJXkhKkZHu19zy73E8s7YuSvIBA/v2e4n7 ruqhGIT0eClbrGVrF66v =onF8 -----END PGP SIGNATURE----- --HlL+5n6rz5pIUxbD-- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html